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Finding the Fourth Proportional to 572,980.51, 858,936.53 and 193,635.96

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Solution

The fourth proportional to 572,980.51, 858,936.53 and 193,635.96 is: 290,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,980.51 : 858,936.53 = 193,635.96 : x
  2. Step 2: Convert to fraction form
    572,980.51/858,936.53 = 193,635.96/x
  3. Step 3: Cross multiply
    572,980.51x = 858,936.53 × 193,635.96
  4. Step 4: Simplify right side
    572,980.51x = 166,320,999,565.62
  5. Step 5: Solve for x
    x = 166,320,999,565.62/572,980.51
  6. Step 6: Final answer
    x = 290,273.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.